find maxima and minima of x^3-2x^2-4x-1. – InterviewSolution

1.

find maxima and minima of x^3-2x^2-4x-1.

Answer»

since x³ has +ve coefficients

so, when x→ ∞ , the function will tend to → ∞ when x→ -∞ , the function will tend to → -∞

so, maxima is ∞

and minimum is -∞

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